Fixing Typo that was mentioned in home-assistant#3764 (home-assistant#3766)

Nicholas Griffin · fabaff · commit 2c7eedd97016 · 2017-10-25T07:34:22.000+02:00
diff --git a/source/_data/glossary.yml b/source/_data/glossary.yml
@@ -5,7 +5,7 @@
 - topic: Service
   description: "[Services](/docs/scripts/service-calls/) are called to perform actions."
 - topic: Event
-  description: When somethings happen.
+  description: When something happens.
 - topic: Entity
   description: An entity is the representation of a single device, unit or web service.
 - topic: Device
